JP2000110967A - Clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clamp invloving no risk of a drop of a holding force, capable of dropping the inserting force for a lock piece to be inserted into a lock hole, and equipped with an enhanced easiness in the installing works. SOLUTION: A clamp is equipped with a pair of lock pieces 4 having at the forefront a lock part 3 to be locked with the lock hole 13 in the mating member so that a slope is generated in the form of open legs toward the substrate part 1 from the tip of a support 2 protruded on the substrate part 1, wherein cut-in parts 5 cut toward the tip of the support 2 are provided outside the lock pieces 4 in positions diameterically smaller than the diameter of the lock hole 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp for attaching a wire harness and assembling the wire harness into a panel hole of a vehicle body or the like.

[0002]

2. Description of the Related Art Clamps are used to assemble a wire harness in which a plurality of lead wires are bundled into a panel hole of a vehicle body or the like. This clamp is, for example, as shown in FIG.
A support 2 is projected from a base 1 attached to a wire harness 10 with a tape 11, and the support 2 is inclined from the tip of the support 2 toward the base 1 in an open leg shape. And a pair of elastic locking pieces 4 having locking portions 3 to be locked. Then, a pair of locking pieces 4 are pushed into the locking hole 13 of the panel 12 from the tip of the column 2, and the locking portion 3 is locked by meshing with the periphery of the locking hole 13 to lock the wire harness 10. Panel 12
Attach to

[0003]

As described above, in order to lock the locking portion 3 of the clamp in the locking hole 13 of the panel 12, the base portion 1 is grasped with a finger and the locking piece 4 is engaged. Push into the hole 13 and insert. By the way, the locking piece 4 is sufficiently thick so as to have strength enough to withstand the weight of the attached wire harness 10. Therefore, the pair of locking pieces 4 are pushed into the locking holes 13 while being narrowed, and inserted,
Locking requires a large insertion force, and there is a problem that the mounting work with fingers is poor.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a tip of a pillar protrudingly provided on a base portion, having an open leg-like inclination toward the base portion, In a clamp provided with a pair of locking pieces having a locking portion locked in a locking hole of a mating side, a notch cut in a tip direction of the support column outside the pair of locking pieces is locked. It is characterized in that it is provided at a position smaller in diameter than the hole diameter of the hole.

According to the present invention, as shown in FIG. 1 (a), when the locking piece 4 is to be inserted into the locking hole 13, the notch 5 cut in the direction of the tip of the column 2 is locked. Since the locking piece 4 is provided at a position smaller than the diameter of the hole 13, the locking piece 4 contacts the periphery of the locking hole 13 on the tip side (point A) of the notch 5, and the locking piece 4 is smaller than the notch 5. A force is applied to bend only the tip side inward. Therefore, the tip end side of the notch 5 of the locking piece 4 can be bent and inserted inward with a smaller bending force than when there is no notch 5 (a force for bending the entire locking piece 4 is required). The insertion force can be reduced. On the other hand, when an external force acts to pull out the locked locking piece 4 from the locking hole 13, a force for bending the locking piece 4 outward is applied to the entire locking piece 4 as shown in FIG. In this case, even if the notch 5 is provided, the force required to bend the locking piece 4 outward does not change.
The holding force for holding the locking pieces 4 in the locking holes 13 does not decrease.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1A and 1B are partial cross-sectional explanatory views of an embodiment of a clamp according to the present invention. In FIG. 1, the same parts as those described with reference to FIG. 2 are indicated by the same reference numerals. In the present embodiment, a support 2 is protruded from a base 1 to which a wire harness 10 is attached with a tape 11, and the front end of the support 2 is inclined toward the base 1 in an open leg shape, and a panel 12 is provided at the end. A pair of elastic locking pieces 4 provided with locking portions 3 locked by the locking holes 13 are provided. The feature of the present embodiment that differs from the conventional example is that a notch 5 cut in the direction of the tip of the support column 2 is provided outside the pair of locking pieces 4. As shown in FIG. 1A, the cut 5 is provided at a position smaller than the hole diameter of the locking hole 13.
When the locking piece 4 is inserted into the locking hole 13, the locking piece 4 comes into contact with the locking hole 13 on the tip side (point A) of the notch 5.

In this embodiment, when the locking piece 4 is inserted into the locking hole 13, as shown in FIG. The bending stress to bend is applied. Accordingly, the distal end side of the notch 5 of the locking piece 4 can be bent inward with a smaller bending stress than when there is no notch 5, and the insertion force can be reduced.

When an external force acts to pull out the locking piece 4 locked in the locking hole 13 from the locking hole 13, as shown in FIG. An outward bending force is applied to the whole. In this case, even if the notch 5 is provided, the force required to bend the locking piece 4 outward does not change, so that the holding force for holding the locking piece 4 in the locking hole 13 does not decrease.

The above-described embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.

[0010]

As described above, according to the present invention, the insertion force for inserting the locking piece into the locking hole on the mating side can be reduced without reducing the holding force, and the mounting workability is improved. There is an excellent effect of improving.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are respectively a partial cross-sectional explanatory view showing a state in which an embodiment of a clamp according to the present invention is inserted into a panel, and a partial cross section showing a state in which a pulling force is applied from the panel. FIG.

FIG. 2 is a partial cross-sectional explanatory view of a conventional clamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base part 2 Support | pillar 3 Locking part 4 Locking piece 5 Notch 10 Wire harness 11 Tape 12 Panel 13 Locking hole

Claims (1)

[Claims] 1. A pair of engaging members, each of which has a locking portion which is inclined at an end of a support pillar protrudingly provided on a base portion toward the base portion in an open leg shape and locked by a locking hole on a mating side. In a clamp provided with a stop piece, a cut portion cut out in a tip end direction of the support pillar outside the pair of lock pieces is provided at a position smaller in diameter than the hole diameter of the lock hole.